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How can i add new library in java ubuntu

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# 1  
Old 05-07-2009
How can i add new library in java ubuntu
Hello

I had been download weka.jar file and I need to call this library in a Java program
Code:
import weka.*;

how could I make my Java compiler identify it

My OS is ubuntu

thanks
# 2  
Old 05-07-2009
Once you have imported the necessary classes, you need to add that .jar to the CLASSPATH before you compile it.
# 3  
Old 05-07-2009
How could I add it to CLASSPATH
# 4  
Old 05-08-2009
Quote:
Originally Posted by vip_a1
How could I add it to CLASSPATH
If you are on bash,

Code:
export CLASSPATH=$CLASSPATH:/path/to/weka.jar

# 5  
Old 05-09-2009
I did it
but it gives me the following error when i compile it

javac a.java

a.java:1: package weka does not exist
import weka.*;
^
1 error
# 6  
Old 05-10-2009
try javac -classpath /path/to/weka.jar a.java

btw you could add the classpath to your .profile in your $HOME...add the line that vino said into your .profile file and logout and log back in
# 7  
Old 05-10-2009
You can't import weka.*. weka is the top level package path in the weka API. It does not contain any classes, only sub-packages. You need to import the actual packages you need.

You can consult the javadoc to see what you need to impoty.
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